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Commit 72b30e98 authored by Sindhu Devale's avatar Sindhu Devale Committed by Jason Gunthorpe
Browse files

i40iw: Remove limit on re-posting AEQ entries to HW 



Currently, if the number of processed Asynchronous Event Queue (AEQ)
entries exceeds 255, they are not returned to HW for re-use. During
scale-up, the unreturned AEQ entries can grow to the max AEQ size and
cause the HW to report an AEQ overflow.

Remove the check which limits the number of processed AEQ entries returned
to HW.

Fixes: 86dbcd0f ("RDMA/i40iw: add file to handle cqp calls")
Signed-off-by: default avatarSindhu Devale <sindhu.devale@intel.com>
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 6376e926

drivers/infiniband/hw/i40iw/i40iw_ctrl.c

+0 −2
Original line number Diff line number Diff line
@@ -1893,8 +1893,6 @@ static enum i40iw_status_code i40iw_sc_get_next_aeqe(struct i40iw_sc_aeq *aeq, 
static enum i40iw_status_code i40iw_sc_repost_aeq_entries(struct i40iw_sc_dev *dev,

							  u32 count)

{

	if (count > I40IW_MAX_AEQ_ALLOCATE_COUNT)

		return I40IW_ERR_INVALID_SIZE;



	if (dev->is_pf)

		i40iw_wr32(dev->hw, I40E_PFPE_AEQALLOC, count);

drivers/infiniband/hw/i40iw/i40iw_user.h

+0 −1
Original line number Diff line number Diff line
@@ -59,7 +59,6 @@ enum i40iw_device_capabilities_const { 
	I40IW_MAX_CEQ_ENTRIES =			131071,

	I40IW_MIN_CQ_SIZE =			1,

	I40IW_MAX_CQ_SIZE =			1048575,

	I40IW_MAX_AEQ_ALLOCATE_COUNT =		255,

	I40IW_DB_ID_ZERO =			0,

	I40IW_MAX_WQ_FRAGMENT_COUNT =		3,

	I40IW_MAX_SGE_RD =			1,